My advice would be to start with the gear on your character, because that's what will really make it. Go down the gear sections of SR4A and Arsenal, and let loose on the B&E section, then get yourself a nice vehicle with all the options. And then your commlinks, weapons... and don't forget the cyber/bioware
You'll soon realize you can't have enough money at chargen to get it all, not for a pilot/rigger/B&E, so that's where the hard choices will be.
Once you manage that, really, skills and attributes will be relatively easy